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the person you spill your feelings out to for the purpose of venting and nothing more because you know you are too good for him.
guy1: yea dude i really care about her and love talking to her about her problems and helping her get through them but she never seems to want to hang out or anything and only really talks to me when she's in a bad mood or having a rough time and wants someone to talk about it with.
guy2: dude you're her fucking vent sponge, i doubt she gives two shits about you, you probably won't see her again anyway so get over it. nice guys finish last.
by ExactlyWhoYouThinkItIs November 02, 2009

Words related to vent sponge

caring generous nice guy pussy rantsponge used